Biological Science, Books a la Carte Plus Mastering Biology with Pearson eText -- Access Card Package (6th Edition)
6th Edition
ISBN: 9780134296029
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 40, Problem 10TYPSS
Summary Introduction
To analyze:
A graph having an independent variable on the x-axis as well as dependent variable on the y-axis, on basis of data, which hypothesizes that the mussels are osmoconformers.
Introduction:
The osmoconformers are the marine organisms that maintain their osmolarity or osmotic pressure similar to that of their surrounding environment. The data in the tabulated form showing water osmolarity and hemolymph osmolarity.
Water osmolarity (milliosmole per liter or milliosmol/L) | Hemolymph osmolarity (milliosmol/L) |
250 | 261 |
500 | 503 |
750 | 746 |
1000 | 992 |
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The data below were collected during a passive membrane transport experiment where two solutes (A and B) were
evaluated relative to their separate transport proteins.
Transport rate
(mmol/min)
0.3
Solute A
Solute B
Transport rate
[S] mM
[S] mM
(mmol/min)
2.0
2.0
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4.0
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1.7
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1.9
16.0
2.0
16.0
2.0
18.0
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18.0
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4. Identify the Km for Solute B. Your answer must include the number with one decimal (similar to the numbers in
the table) followed by a space and then the units
5. Which transport protein is present in the highest concentration?
6. Which ligand has the greatest affinity for its protein?
Using the appropriate osmotic terms (hypertonic, hypotonic, or isotonic) describe what would happen to each organism in the following settings:
      a. A bunch of carrots are placed soaked a sink of distilled water.
Two to three drops of mouse blood samples were placed in three different vials containing 0.07 M NaCl,0.15 M NaCl, and 0.30 M NaCl. A drop from each of the three vials were obtained and put on a slide forobservation under HPO. The effects of the different osmotic concentrations on the cells are shown in figures in your worksheets.
Label the cell membrane for each figure. Give a short description (size and cell shape) for each of the RBC samples on the space provided in your worksheet. Compare their appearances with RBCs in the blood smear. Use the following guide questions in providing descriptions for each item.
Which preparation has cells that look similar as those in the blood smear? What does this indicate about the movement of water in the cells? In which solution do the cells appear differently from the normal RBCs? What part of the cell could have possibly controlled such movement of water? What is its property that allowed this movement?
Chapter 40 Solutions
Biological Science, Books a la Carte Plus Mastering Biology with Pearson eText -- Access Card Package (6th Edition)
Ch. 40 - 1. Which of the following statements is true of...Ch. 40 - Prob. 2TYKCh. 40 - 3. What effect does antidiuretic hormone (ADH)...Ch. 40 - Fill in the blank: In Gila monsters, the organ in...Ch. 40 - Prob. 5TYUCh. 40 - Prob. 6TYUCh. 40 - Prob. 7TYUCh. 40 - 8. Scientists have noted that marine invertebrates...Ch. 40 - Prob. 9TYPSSCh. 40 - Prob. 10TYPSS
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- Draw a beaker that is filled with water. Label the water with an osmolarity of 0.61M. In the water, draw a single Elodea cell (note: Elodea is an aquatic plant) with a cellular osmolarity of 0.42M. Name this drawing with the tonicity term that best describes the solution of the water in the beaker compared to the osmolarity of the Elodea cell. Then describe what will happen to the tonicity of the cell over time. Make sure to explain the direction that water will flow, small molecules will diffuse, and explain what will happen to this cell over time. Make sure you use all of the applicable tonicity terms in your description.arrow_forwardFill in the 3rd row of the Prediction Table. You should also be able to fill in the 4th row. Because of the gradient differences in beakers 3 and 4, for which do you predict a faster rate of osmosis? Explain. What is the concentration gradient for the beaker below? -10 _% While sucrose molecules are too large to cross dialysis membrane, ions and monomers of macromolecules are not. The diffusion of solutes across a membrane is called dialysis. Consider the set-up to the right. Fill in the % water for the beaker and bag solutions. Then fill in the table below. NaCl glucose Hâ‚‚O Osmosis? Dialysis? Dialysis Dialysis Osmosis Into bag? Out of bag? No net movement? Into the bag Out of the bag No net mouvement 2 Prelab 5 Movement of Molecules 10% NaCl 10% glucose 90 % Hâ‚‚O 90 % Hâ‚‚Oarrow_forwardBlood is taken from a snake with a plasma osmolarity of 300 mOsM. The cells are purified and resuspended in a saline solution that approximates the snake's blood. Which is the best solution to use? 150 mM KCI 150 mM NaCl 300 mM KCI 300 mM NaClarrow_forward
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